I would looooove to see some evidence of your 22 mpg's on a 68 Bird. Never heard of that. The documented mpg's from the factory were around 11mpg's avg in a 400, up to ~14mpg's on a 350. You claim you beat that by 50%?!?! Sorry, but I have to challenge that. If you have a secrete receipe it may be worth big$$$.
Was wondering that as well and stated in my reply to your other thread.
I'd be happy with 15 MPG. You must only drive downhill.
I used to be indecisive. Now I'm not sure. I feel like I am diagonally parked in a parallel universe. 1968 400 convertible (Scarlet) 1976 T/A - 455 LE (No Burt) 1976 T/A New baby, starting full restoration. 1968 350 - 4 speed 'vert - 400 clone (the Beast!) 1968 350 convertible - Wife's car now- 400 clone (Aleutian Blue) (Blue Angel) 2008 Durango - DD 2008 GXP - New one from NH is AWESOME! 2017 Durango Citadel - Modern is nice! HEMI is amazing! 1998 Silverado Z71 - Father-daughter project 1968 400 coupe - R/A clone (Blue Pearl) (sold) 1967 326 convertible - Sold 1980 T/A SE Bandit - Sold